Finding the Fourth Proportional to 88,410,387.12, 121,122,669.38 and 85,096,810.96

Step by Step Solution

1. Step 1: Write the proportion equation
   88,410,387.12 : 121,122,669.38 = 85,096,810.96 : x
2. Step 2: Convert to fraction form
   88,410,387.12/121,122,669.38 = 85,096,810.96/x
3. Step 3: Cross multiply
   88,410,387.12x = 121,122,669.38 × 85,096,810.96
4. Step 4: Simplify right side
   88,410,387.12x = 10,307,152,899,200,440
5. Step 5: Solve for x
   x = 10,307,152,899,200,440/88,410,387.12
6. Step 6: Final answer
   x = 116,583,053.59